Based on the analysis and research of the structure of lattice

this paper in detail discusses some important algorithms about lattice and gives lattice vector quantization algorithms of image objects in wavelet domain. In order to realize efficiently scalar quantization of some wavelet coefficients

this paper presents a successive approximation algorithm applying the distribution of the wavelet coefficients. At the same time it uses lattice vector quantization for some wavelet coefficients. It shows by examples that lattice vector quantization not only accelerates the quantization but also raises the compression efficiency

which satisfies the image compression's needs for multimedia communications.